OEM IW-101 Service manual

IW-101
A / B Switch
Source 1 or Source 2
or
Speaker Pair A or Pair B
See Reverse Side for
IMPORTANT Precautionary
and
Installation Information
OUTPUT
R INPUT
L INPUT
R– R+ L+ L–
B+ B– A– A+
A+ A– B– B+
C
AB
Product available in
White, Ivory & Almond finishes
Copyright © 1997 OEM Systems Company, Inc., Sparks, Nevada, 702 355-0405 All rights reserved
A) Connect LEFT & RIGHT Inputs of "Speaker Pair A" to BLOCK A
B) Connect LEFT & RIGHT Inputs of "Speaker Pair B" to BLOCK B
C) Connect LEFT & RIGHT Channel Outputs of Amplifier to BLOCK C
1 Source — 2 Pairs of Speakers
When used as as Speaker Switch only one Pair of Speakers can be operated at a time.
A) Connect LEFT & RIGHT Channel Outputs of "Amplifier A" to BLOCK A
B) Connect LEFT & RIGHT Channel Outputs of "Amplifier B" to BLOCK B
C) Connect LEFT & RIGHT Speakers Inputs to BLOCK C
2 Sources — 1 Pair of Speakers

IW-101
Important Information
Caution:
This is a "Common Ground" switch.
It is not intended to be used with equipment which is incapable of
operating with "common ground" connections.
Consult the owner’s manual of the equipment to be connected.
Severe circuit damage can occur to equipment not designed for
"common ground" type connections.
Wire & Wiring Notes:
A) Wiring to and from switch should be "CL-2 or CL-3" rated. Use 16 gauge or larger for runs in excess of 100 feet.
B) Strip ¼" off each wire. Ensure all strands are twisted together and inserted into respective terminals.
C) For 12 gauge and larger wire, trim some of the strands off to enable them to fit into the terminals.
D) Perform initial testing of selector at low volume level to prevent damage to equipment.
Copyright © 1997 OEM Systems Company, Inc., Sparks, Nevada, 702 355-0405 All rights reserved
Precautionary Information Concerning Using More Than Two (2) Pairs of Speakers
Because most amplifiers are designed to operate between 4 - 8 ohms you should not configure your system to play any
more than two (2) pair of 8 ohm speakers at a time.
If you wish to wire your system to play more than two (2) pair of 8 ohm speakers simultaneously you need to install an
impedance compensating device. These are manufactured by OEM Systems:
SW-4SPKR
4 pair speaker switcher with impedance compensation
SW-8SPKR
8 pair speaker switcher with impedance compensation